1. New England Greek. This area of the country has New Haven-style pizza, but also a Greek-influenced pan-baked pie. It has a thin, firm crust topped with oregano-heavy tomato sauce as well as a blend of mozzarella and cheddar cheeses. Both the crust and the cheese contribute to this pizza’s oiliness, so be sure to ask for plenty of napkins if you order it at a New England pizza restaurant.